News.com’s blog reports on how much oil we have left, in the estimate of Chevron CTO Don Paul: About 1 trillion gallons that we can extract, and another trillion that, for now, we can’t. In a hallway conversation with a News.com reporter, Chevron’s Paul estimated that we will have consumed half of all the oil that ever existed — 1.5 trillion gallons, out of 3 trillion — by 2012. From the story:

Thus, peak oil–the theory that we’re about to get into declining numbers on conventional oil–is probably real. However, Paul said, “I don’t think it has to be the catastrophe that other people have predicted, because there are other ways to make fuel.”

Photo: James Duncan Davidson “We’ve run into a giant fracking problem,” says TED curator Chris Anderson by way of introducing the next speaker, energy tycoon T. Boone Pickens, who comes to the stage to talk about methods to solve the energy crisis facing the United States. Or as he puts it, his “alternative to alternative energy” […]

Biologist and futurist Juan Enriquez talks about the potential of bioenergy. Our current energy sources — coal, oil, gas — are ultimately derived from ancient plants — they’re “concentrated sunlight.” He asks, Can we learn from that process and accelerate it? Can we get to the point where we grow our own energy as efficiently […]